diff options
Diffstat (limited to 'drivers/media/video/gspca/gspca.c')
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 31721eadc597..b4fd548ada76 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -1049,12 +1049,6 @@ static int vidioc_g_register(struct file *file, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(file); - if (!gspca_dev->sd_desc->get_chip_ident) - return -ENOTTY; - - if (!gspca_dev->sd_desc->get_register) - return -ENOTTY; - gspca_dev->usb_err = 0; return gspca_dev->sd_desc->get_register(gspca_dev, reg); } @@ -1064,12 +1058,6 @@ static int vidioc_s_register(struct file *file, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(file); - if (!gspca_dev->sd_desc->get_chip_ident) - return -ENOTTY; - - if (!gspca_dev->sd_desc->set_register) - return -ENOTTY; - gspca_dev->usb_err = 0; return gspca_dev->sd_desc->set_register(gspca_dev, reg); } @@ -1080,9 +1068,6 @@ static int vidioc_g_chip_ident(struct file *file, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(file); - if (!gspca_dev->sd_desc->get_chip_ident) - return -ENOTTY; - gspca_dev->usb_err = 0; return gspca_dev->sd_desc->get_chip_ident(gspca_dev, chip); } @@ -1136,8 +1121,10 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, int mode; mode = gspca_dev->curr_mode; - memcpy(&fmt->fmt.pix, &gspca_dev->cam.cam_mode[mode], - sizeof fmt->fmt.pix); + fmt->fmt.pix = gspca_dev->cam.cam_mode[mode]; + /* some drivers use priv internally, zero it before giving it to + userspace */ + fmt->fmt.pix.priv = 0; return 0; } @@ -1168,8 +1155,10 @@ static int try_fmt_vid_cap(struct gspca_dev *gspca_dev, /* else ; * no chance, return this mode */ } - memcpy(&fmt->fmt.pix, &gspca_dev->cam.cam_mode[mode], - sizeof fmt->fmt.pix); + fmt->fmt.pix = gspca_dev->cam.cam_mode[mode]; + /* some drivers use priv internally, zero it before giving it to + userspace */ + fmt->fmt.pix.priv = 0; return mode; /* used when s_fmt */ } @@ -1694,8 +1683,6 @@ static int vidioc_g_jpegcomp(struct file *file, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(file); - if (!gspca_dev->sd_desc->get_jcomp) - return -ENOTTY; gspca_dev->usb_err = 0; return gspca_dev->sd_desc->get_jcomp(gspca_dev, jpegcomp); } @@ -1705,8 +1692,6 @@ static int vidioc_s_jpegcomp(struct file *file, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(file); - if (!gspca_dev->sd_desc->set_jcomp) - return -ENOTTY; gspca_dev->usb_err = 0; return gspca_dev->sd_desc->set_jcomp(gspca_dev, jpegcomp); } @@ -2290,6 +2275,20 @@ int gspca_dev_probe2(struct usb_interface *intf, v4l2_disable_ioctl_locking(&gspca_dev->vdev, VIDIOC_DQBUF); v4l2_disable_ioctl_locking(&gspca_dev->vdev, VIDIOC_QBUF); v4l2_disable_ioctl_locking(&gspca_dev->vdev, VIDIOC_QUERYBUF); + if (!gspca_dev->sd_desc->get_chip_ident) + v4l2_disable_ioctl(&gspca_dev->vdev, VIDIOC_DBG_G_CHIP_IDENT); +#ifdef CONFIG_VIDEO_ADV_DEBUG + if (!gspca_dev->sd_desc->get_chip_ident || + !gspca_dev->sd_desc->get_register) + v4l2_disable_ioctl(&gspca_dev->vdev, VIDIOC_DBG_G_REGISTER); + if (!gspca_dev->sd_desc->get_chip_ident || + !gspca_dev->sd_desc->set_register) + v4l2_disable_ioctl(&gspca_dev->vdev, VIDIOC_DBG_S_REGISTER); +#endif + if (!gspca_dev->sd_desc->get_jcomp) + v4l2_disable_ioctl(&gspca_dev->vdev, VIDIOC_G_JPEGCOMP); + if (!gspca_dev->sd_desc->set_jcomp) + v4l2_disable_ioctl(&gspca_dev->vdev, VIDIOC_S_JPEGCOMP); /* init video stuff */ ret = video_register_device(&gspca_dev->vdev, |